Dividing apparatus for powders or the like.



PATENTED FEB. 21, 1905.

. A. DARVAS.

DIVIDING APPARATUS FOR POWDERS OR THE LIKE.

I No. 783,405.

APPLICATION FILED- APR. 2. 1902.

2 SHEBTSSHEET 1.

No. 783,405. 7 PATENTED FEB. 21, 1905.

A. DARVAS.

DIVIDING APPARATUS FOR POWDERS OR THE LIKE.

APPLICATION FILED APR. 2, 1902.

2 SHEETS-SHEET 2.

UNTTED STATES Patented February 21,1905.

PATENT \FFTCE.

ALEXANDER DARVAS, OF BUDAPEST, AUSTRIA-HUNGARY.

DllllDlNG APPARATUS FOR POWDERS OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 783,405, dated February21, 1905. Application filed April 2, 1902. Serial No. 101,125.

To all whom, it may concern:

Be it known that I, ALEXANDER DARVAS, physician. a subject of the Kingof Austria- Hungary, residing at Budapest, in the Kingdom ofAustria-Hungary, have inventeda new and useful Dividing Apparatus forPowders or the Like, of which the following is a specilication.

The object of the present invention is to utilize the action of thecentrifugal force for the uniform division of anydetermined quantity ofpowdery, granular, or similar masses into any determined number of equalportions. These .portions are placed in suitable compartments, bags, orthe like. In order to insure the proper division of any weighed quantityof materials, it is preferable to employ a disk revolving at an evenspeed around its vertical axis and to conduct the mass as uniformly aspossible in a stream to the disk outside its aXis in such a manner thatthe particles of the mass are taken along with and by the disk, spreadby their centrifugal forces evenly over the surface, and delivered atthe periphery of the disk to the proper number of suitably-arrangedcompartments, bags, and the like. It is essential that the stream shouldbe conducted to the disk outside its axis, for if it were conducted tothe disk at its center part of it would remain at the center and theremaining parts would be distributed unequally over the surface of thedisk. It is also essential that the stream should be as uniform aspossible, as otherwise the uniform division of the mass would not bepossible.

A mode of construction of the dividing apparatus according to this myinvention is illustrated in the accompanyingdrawings, in which- Figure lis an elevation of the apparatus, the disk being shown in section. Fig.2 is a plan of the disk with the dividing device around its periphery,and Fig. 3 is a vertical central section of the same.

On the vertical shaft a is aflixed a horizontal disk 6, which isperfectly smooth on its upper surface. Above this disk a hopper 0 isarranged, the opening d of which is at a certain distance from thecenter of the disk 5. ()n the periphery of the disk 5 a series ofcompartments of any shape may be arranged. In the mode of executionshown at Fig. 2 an annular frame ff of a U-shaped cross-section isfastened on the lower external flange Z) of the disk beither by means ofpins 7) in Fig. l or otherwise. This ring, U-shaped in cross-section, isdivided into compartments of equal size by means of verticalpartitionwalls resembling blades of knives and being arrangedtangentially with respect to the circle in which the material impingesupon the disk, the compartments being open in the direction to the disk.The openings are provided with stiffening or reinforcing funnels h h,fitting exactly into said openings, the front apertures of said funnelsbeing all of the same size. The object of the said funnels is toreinforce the apertures of the receivers, such as paper shells 0 c, thelatter being first shoved upon the funnels and then after having beenfilled taken off from the same.

In operating the apparatus first the disk 7) is put into a quick butuniform rotation in a convenient mannerfor example, by the handerank .2with the aid of its shaft .2, the two bottom Wheels 41 and w, the twogear-wheels wand y, and the shaft a. Then the'weighed quantity of themass is placed in the hopper 0. During the revolution of the disk 6 themass will be conducted at a certain speed and in a uniform streamdetermined by the area of the opening d of the hopper to the revolvingdisk. Owing to the eccentrical position of the hopper-opening d withregard to the disk I), the stream will fall on the disk at a place wherethe peripherical velocity of the latter is comparatively large. Theconsequence of this is that the particles of the material taken alongwith and by the disk 5 will be pushed forward by their centrifugalforces over the surface of the disk toward the periphery, where they aredivided by the sheets g and collected in the paper bags 6. As theparticles of the mass follow each other continually while falling downon the disk 6, the uniformity of their distribution over the surface ofthe disk will be insured. Since the dividing-sheets g of thecompartments are at exactly equal distances from each other, it followsthat all the paper bags 0 will receive equal quantities of (see Fig. 3)

the material divided. The disk 6 is stopped only after the lastparticles of the mass spread over the disk have left its periphery. Thenthe portions of the mass will be lodged in the bags.

The hopper c is preferably put into a uniform vibrating movement of anystrength so as to avoid any disturbances or irregularities in the streamof the mass leaving the opening (Z of the hopper. The manner in whichthis may be done according to Fig. 1 will be explained later on. Tofurther the uniformity of the stream, an additional hopper 71; may beemployed for receiving the mass to be divided and conducting it to thehopper c. Preferably the hopper 7:; is subjected to rapidly-followingvibrations by means of a serrated roller 0, striking with its teethagainst the roller 71, mounted on the under side of the hopper. Theroller 0 is put into rotation with the aid of the pulleys Z 1n n z, andlaces. The hopper 70 is mountedv to rock on the end 3) of a rod 9 andbears by reason of its own weight with the roller z'against the furrowsof thesaid roller 0. For adjusting the inclination of the hopper k withregard to the hopper c the rod 9 is slotted and guided by the pin is,engaging its Slot, while a two-armed lever r, turning around the pin itand connected pivotally with the lower end of the rod q, serves forraising or lowering the aXis p of the hopper It. The lower hopper 0 isassumed to be attached to elastic strips 0 and pivotally connected withthe upper hopper 7:: by means of one or two rods 0. It will now beevident that in consequence of this the lower hopper 0 will partake inthe vibrations of the upper hopper l).

The apparatus is specially suitable for the quick division ofmedicaments into a certain number of smaller quantities withoutweighing, since the division of a mass of small weight into minimalequal portions is attained by the apparatus with a far greater certaintythan hitherto. This is the more important for poisonous medicaments.Obviously, however, the apparatus may also be employed for the divisionof tea, powder, dynamite, tobacco, &c.

Having now described my invention, what I desire to secure by LettersPatent of the United States is l. The combination with a horizontaldisk, of means for rotating said disk, a first hopper for receiving amass to be divided, means for adjusting said first hopper as to positionand inclination, means for vibrating said first hopper to cause the masscontained thereinto flow out in a stream, a second hopper arrangedeccentrically above said disk for receiving the stream from said firsthopper, means for vibrating said second hopper to cause the stream ofmaterial to flow through an aperture on said disk, and a receivingdevice arranged around said disk for dividing the mass distributed oversame substantially as set forth.

2. The combination with a horizontal disk, of means for rotatingsaid'disk, a first hopper for receiving a mass to be divided, means foradjusting said lirst hopper as to position and inclination, means forvibrating said first hopper to cause the mass contained therein to flowout in a stream, a second hopper arranged ecceutrically above said diskfor receiving the stream from said first hopper, means for vibratingsaid second hopper to cause the stream of material to flow through anaperture on said disk, and a series of compartments arranged around saiddisk for dividing the mass distributed over same substantially as setforth.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

ALEXANDER DARVAS.

itnesses ERNEST SzAsz, LoUIs VAND RF.

